Supplemental Financial Information - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss)
Balance	$ 68,840	$ 63,635
Balance	53,189	68,840
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss)
Balance	2,457	752
Other comprehensive loss	(3,998)	1,705
Balance	(1,541)	2,457
Change in Defined Pension Benefit Obligation
Accumulated Other Comprehensive Income (Loss)
Balance	(364)	(1,236)
Other comprehensive loss	4,311	872
Balance	3,947	(364)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
Balance	2,093	(484)
Other comprehensive loss	313	2,577
Balance	$ 2,406	$ 2,093